Melissa, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.4 °F (low) to 75.4 °F (high). Annual precipitation averages 42.2 Inches. Melissa is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.9 °F | 54.7 °F | 2.49 in. |
| February | 37.5 °F | 59.0 °F | 3.02 in. |
| March | 45.1 °F | 66.5 °F | 3.86 in. |
| April | 52.8 °F | 74.4 °F | 4.02 in. |
| May | 62.4 °F | 81.9 °F | 5.13 in. |
| June | 70.6 °F | 90.0 °F | 3.74 in. |
| July | 74.3 °F | 94.6 °F | 2.33 in. |
| August | 73.7 °F | 95.1 °F | 2.33 in. |
| September | 66.5 °F | 87.9 °F | 3.32 in. |
| October | 55.3 °F | 77.7 °F | 4.76 in. |
| November | 44.4 °F | 65.7 °F | 3.51 in. |
| December | 36.3 °F | 56.7 °F | 3.67 in. |
| Annual | 54.4 °F | 75.4 °F | 42.18 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |